cant register my wii

hi ive got my wii and the pin code and i ve signed up to club nintendo but i also want vip 24.7 so i can earn stars through reistering my wii and games but every code i try it said this pin is not valid??????

I had a similar issue, i had 2 pin's one for the Wii and one for wii sports. The wii registered ok, but wii sports refused to be recognised.
However, the shop i got it from i have bought 2 games from and none have a pin card inside.

I think maybe one of the staff has about 200000 stars by now. I won't be going back !